113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef DIAGFWD_PERIPHERAL_H
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#define DIAGFWD_PERIPHERAL_H
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#define PERIPHERAL_BUF_SZ 16384
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#define MAX_PERIPHERAL_BUF_SZ 32768
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#define MAX_PERIPHERAL_HDLC_BUF_SZ 65539
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#define TRANSPORT_UNKNOWN -1
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#define TRANSPORT_SMD 0
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#define TRANSPORT_SOCKET 1
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#define NUM_TRANSPORT 2
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#define PERIPHERAL_MASK(x) \
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((x == PERIPHERAL_MODEM) ? DIAG_CON_MPSS : \
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((x == PERIPHERAL_LPASS) ? DIAG_CON_LPASS : \
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((x == PERIPHERAL_WCNSS) ? DIAG_CON_WCNSS : \
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((x == PERIPHERAL_SENSORS) ? DIAG_CON_SENSORS : 0)))) \
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#define PERIPHERAL_STRING(x) \
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((x == PERIPHERAL_MODEM) ? "MODEM" : \
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((x == PERIPHERAL_LPASS) ? "LPASS" : \
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((x == PERIPHERAL_WCNSS) ? "WCNSS" : \
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((x == PERIPHERAL_SENSORS) ? "SENSORS" : "UNKNOWN")))) \
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struct diagfwd_buf_t {
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unsigned char *data;
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unsigned char *data_raw;
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uint32_t len;
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uint32_t len_raw;
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atomic_t in_busy;
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int ctxt;
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};
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struct diag_channel_ops {
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void (*open)(struct diagfwd_info *fwd_info);
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void (*close)(struct diagfwd_info *fwd_info);
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void (*read_done)(struct diagfwd_info *fwd_info,
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unsigned char *buf, int len);
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};
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struct diag_peripheral_ops {
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void (*open)(void *ctxt);
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void (*close)(void *ctxt);
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int (*write)(void *ctxt, unsigned char *buf, int len);
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int (*read)(void *ctxt, unsigned char *buf, int len);
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void (*queue_read)(void *ctxt);
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};
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struct diagfwd_info {
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uint8_t peripheral;
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uint8_t type;
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uint8_t transport;
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uint8_t inited;
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uint8_t ch_open;
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atomic_t opened;
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unsigned long read_bytes;
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unsigned long write_bytes;
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spinlock_t buf_lock;
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struct mutex data_mutex;
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void *ctxt;
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struct diagfwd_buf_t *buf_1;
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struct diagfwd_buf_t *buf_2;
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struct diag_peripheral_ops *p_ops;
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struct diag_channel_ops *c_ops;
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};
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extern struct diagfwd_info peripheral_info[NUM_TYPES][NUM_PERIPHERALS];
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int diagfwd_peripheral_init(void);
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void diagfwd_peripheral_exit(void);
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void diagfwd_close_transport(uint8_t transport, uint8_t peripheral);
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void diagfwd_open(uint8_t peripheral, uint8_t type);
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void diagfwd_early_open(uint8_t peripheral);
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void diagfwd_late_open(struct diagfwd_info *fwd_info);
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void diagfwd_close(uint8_t peripheral, uint8_t type);
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int diagfwd_register(uint8_t transport, uint8_t peripheral, uint8_t type,
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void *ctxt, struct diag_peripheral_ops *ops,
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struct diagfwd_info **fwd_ctxt);
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int diagfwd_cntl_register(uint8_t transport, uint8_t peripheral, void *ctxt,
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struct diag_peripheral_ops *ops,
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struct diagfwd_info **fwd_ctxt);
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void diagfwd_deregister(uint8_t peripheral, uint8_t type, void *ctxt);
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int diagfwd_write(uint8_t peripheral, uint8_t type, void *buf, int len);
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void diagfwd_write_done(uint8_t peripheral, uint8_t type, int ctxt);
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void diagfwd_buffers_init(struct diagfwd_info *fwd_info);
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/*
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* The following functions are called by the channels
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*/
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int diagfwd_channel_open(struct diagfwd_info *fwd_info);
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int diagfwd_channel_close(struct diagfwd_info *fwd_info);
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void diagfwd_channel_read(struct diagfwd_info *fwd_info);
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int diagfwd_channel_read_done(struct diagfwd_info *fwd_info,
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unsigned char *buf, uint32_t len);
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#endif
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